这个地区有良好的天然排水系统。
可用来输送液体介质或气体介质，尤其适用于石油、天然气的输送和城镇的给排水系统中。
The tube can be used for liquid or gas media conveyance and is especially suitable for oil and natural gas transportation and urban water supply and drainage system.
可用来输送液体介质或气体介质，尤其适用于石油、天然气的输送和城镇的给排水系统中。
The tube can be used for liquid or gas media conveyance and is especially suitable for oil and natural gas transportation and urban water supply and drainage system.
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